baber/WOPTO huggingface dataset:
Patent GB-1489772-A (GB)
Title: Electromagnetic machines
IPC: H02K9/22
Filed: 1975-07-25
Abstract: 1489772 Cooling electromagnetic machines MARKON ENG CO Ltd 25 July 1975 [18 May 1974] 22271/74 Heading H2A Cooling of a salient pole rotor 10 of an electromagnetic machine having an impellor for directing a flow of coolant gas through the machine is improved by heat pipe structures 16 carried by the windings 13 on the salient pole 11, each structure 16 being positioned with its evaporator end 17 within the corresponding winding 13 and its condenser end 15 projecting out of the corresponding winding 13 and into the coolant gas flow path. Each structure 16 has its evaporator end 17 further from the rotor axis than its condenser end 15. Each pole 11 may have two structures 16, Figs. 2 and 3 (not shown) and Fig. 4, each formed from a plurality of abutting elements (16<SP>1</SP>), Fig. 3, with the evaporator ends 17 adjacent the pole shoes 12 and the evaporator-condenser end direction parallel to a radius to the rotor axis 2. The elements (16<SP>1</SP>) may be of equal thickness to rectangular section strip material forming windings 13. Alternatively the structure 16 may be oriented with the evaporator-condenser end directions extending generally longitudinaally of the rotor in which case each pole 11 may have four structures 16 in two back-to-back pairs with the evaporator ends 17 axially central of the rotor and the condenser ends 15 near the axial ends of the rotor, Figs. 5, 7, and 8 (not shown), and Fig. 6. Structures 16 each comprising a plurality of heat pipe elements in parallel, or each having an evaporator end centrally located between a pair of condenser ends, may also be used. The rotor may be completely laminated, or substantially solid but with laminated pole shoes 12.
Patent GB-426534-A (GB)
Title: Improvements in and relating to continuous current motors
IPC: H02K23/60
Filed: 1934-07-31
Abstract: 426,534. Motor driving-arrangements. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. July 31, 1934, No. 22362. Convention date, July 31, 1933. [Class 35] In a continuous-current motor for shippropulsion of the type in which the armature and field-magnet both rotate and drive coaxial propeller-shafts the commutator is so arranged, as by making the pitch angle of the commutator segments half that of the armature conductors, that, when the shafts are rotating at the same speed in opposite directions, the brushes are stationary in space. To ensure that the shafts shall so rotate a pole-wheel m is secured to the hollow shaft a carrying the field-magnet b, and is fed with alternating, preferably three-phase current from the armature d through sliprings k. The pole-wheel m co-operates with a stationary armature h. The necessary relation between the rotations of the shafts may also be produced by mechanical gearing.
Patent GB-614778-A (GB)
Title: Improvements in power-propelled implements for working the soil or operating on loose material
Filed: 1946-07-29
Abstract: 614,778. Excavating. DEW, C. J., LIEBRECHT, H. F., and CLIFFORD, E. July 29, 1946, No. 22513. [Class 68 (i)] In an implement for working soil &c. of the kind employing a wide blade, such as a bulldozer, the blade is lifted or lowered by means of an extensible and contractable rigid limb pivoted at one end to the blade and at the other end to the supporting tractor near the driver's seat, manual operating means for the limb being provided at said other end. As shown, the blade 1 is carried by side-strutted brackets 2 pivoted to a V-shaped tractor chassis 4; the control limb 6 is pivoted at 13 to the blade and at 17 to the tractor, and comprises a tubular casing 11, Fig. 3, with a nut 14 engaged by a threaded rod 15 fixed to a tube 16 carrying a hand-wheel 9. The blade is urged upwardly by a spring, such as a leafspring 18, or a tension spring arranged between the upper edge of the blade and the front of the tractor.
Patent GB-475681-A (GB)
Title: Improvements in or relating to thermostatically controlled containers
IPC: H01J17/28
Filed: 1936-08-17
Abstract: 475,681. Automatic control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 17, 1936, No. 22662. Convention date, Aug: 15, 1935. [Class 38 (iv)] Temperature.-A heat-generating device, such as a mercury rectifier 2, the temperature of which has to be maintained within predetermined limits, is mounted within a container 1 provided with a heater 3 which is controlled by thermostatic means, and a cover 26 is adapted to be opened by thermostatic means if the temperature of the container exceeds a predetermined maximum. The container 1 consists of a glass' cylinder closed by a metal member 14 which supports the rectifier socket 15. A terminal 13 in the container is connected to the anode terminal by a flexible lead 12. The heating ring 3 is connected to a current source 6 through terminals 5, 7 and a snap switch 8 secured to the terminal 7. The thermostatic means comprises a bellows 16 which is secured between a lever 18 and the cover 26. The lever 18 is pivoted to a member 25, secured to the cover, and is pivoted to a member 19 secured to the button of the switch. A hooked extension of the cover is adapted to engage a pivot 23 supported by a member 24 from the container. Upon an increase in temperature, the bellows expands and causes the cover to be raised. When the cover is raised, the member 19 will be lifted to operate the switch to de-energize the heater.
Patent GB-463380-A (GB)
Title: Improvements in or relating to adjustable spanners
IPC: B25B13/14
Filed: 1936-08-18
Abstract: 463,380. Wrenches. GLUTH, R., and GLUTH, B., (trading as GLUTH & CO., R.). Aug. 18, 1936, No. 22704. [Class 61 (iii)] The slidable-jaw member 1 of an adjustable spanner is guided along its whole length by the fixed jaw member 2 which is of U-section with the edges turned in to enclose almost completely the member 1. The adjusting worm 10 is mounted in bearing members 11 secured by small pins 15 in U-section projections 7, 8 on the member 2, and has a central bore housing a coil spring and two balls urged thereby to engage a pair of recesses in the bearing members 11, this arrangement allowing the worm to be pulled out of engagement with a rack on the member 1 for rapid adjustment of the latter. Scales 19, 20 are provided along the edges 3 to indicate the setting of the jaw space. The member 1 may be lengthened to extend at 16 beyond the member 2 and the extension provided with a nut aperture 17.
Patent GB-875454-A (GB)
Title: Canning process and product
Inventor: SHAKMAN JAMES GLIKAUF
IPC: B65D43/02
Filed: 1959-07-02
Abstract: 875,454. Sterilizing liquids. PABST BREWING CO. July 2, 1959, No. 22731/59. Class 49. [Also in Group XVII] Food products are sterilized in cans with recessed concave ends 6 which, under the action of increased pressure during sterilizing, expand to the convex position, still, however, below the surrounding rims, to provide an increased head space above the contents.
Patent GB-146009-A (GB)
Title: Improvements in escapements for watches, clocks, and other timekeepers
IPC: G04B15/08
Filed: 1919-11-25
Abstract: 146,009. Riley, C. G. Nov. 25, 1919. Escapements.-The escapement comprises two levers B and C, C', of which the lever B is provided with a pin H for engagement with the escape-wheel A and with a slot b having an inclined face b<1> for engagement with a pin m<1> on the end of the second lever. The second lever carries also a pallet M having a flat face m for engagement with the escape-wheel, and a fork c<1>, c<2> for engagement with the impulse pin d on the balance wheel.
Patent GB-751443-A (GB)
Title: Over-voltage protection device
IPC: H02H7/16
Filed: 1954-08-06
Abstract: 751,443. Protective arrangements. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 6, 1954 [Aug. 31, 1953], No. 22881/54. Class 38 (4). In an over-voltage protection device for a load 1 comprising a plurality of series spark gaps 4 : a, 4 : b, connected in shunt with the load and to tappings on a voltage divider also shunting the load, constancy of the voltage breakdown value of the device is ensured by an auxiliary precision gap 6 which, in series with a valve type resistor- 7, shunts one or more of the main gaps. The auxiliary gap is arranged to break down before any of the main gaps, breakdown of the latter then following as a consequence of the redistribution of voltage across them upon breakdown of the auxiliary gap. The voltage divider may comprise resistors 8 : g, 8 : b and capacitors 9 : a, 9 : b connected in parallel with each other across each main gap, there being an inductor 10 in series with the auxiliary gap and further inductors 11 in the connections between main gap and the tapping points on the voltage divider, whereby oscillatory circuits are formed which provide additional voltages for assisting breakdown of the main gaps.. In order to ensure adequate voltage for causing the successive breakdown of a number of unshunted series gaps 4 : b-4 : f, Fig. 2, large in relation to the number of such gaps 4 : a shunted by the auxiliary gap 6, condensers 13 : B-13 : F are provided, as shown, which together with the sections 12 : a-12 : f of a resistive, or inductive, voltage divider form a delay network preventing the immediate redistribution of voltage across gaps 4 : c-4 : f upon breakdown of the auxiliary gap 6. Gap 4 : b breaks down, in consequence, followed in succession by 4 : d-4 : f. The auxiliary gap may be hermetically sealed and provided with preionization means, so that its breakdown voltage is well defined and its delay low. This gap may also comprise a series of gaps in parallel with a low-frequency potential divider and the cover of the sealed casing may be provided with metal screens for capacitive control of the gaps.
Patent GB-879151-A (GB)
Title: Improvements in end fittings for use with flexible conduits or the like
Inventor: JACKSON FRANK REED
IPC: H01R13/59
Filed: 1959-07-03
Abstract: 879,151. Pipe connections. SUPERFLEXIT Ltd. July 4, 1960 [July 3, 1959], No. 23003/59. Class 99(1). An end fitting for attachment to a conduit 11, Fig. 1, comprises a flanged inner sleeve 8 insertable into the end of the conduit, an outer sleeve 14 of rubber or thermoplastic adapted to surround the end of the conduit, an externally screw-threaded and peripherally flanged nipple 1 bored to receive the sleeve 14 and having an internal shoulder 10 against which the inner sleeve flange 9 is adapted to abut, a compression ring 15 adapted to enclose the conduit and engage the end face of the sleeve 14, and an internally screw-threaded sleeve nut 18 having an internal shoulder 17 for engaging the compression ring 15, the sleeve nut when screwed on the nipple 1 exerting endwise pressure on the sleeve 14 to cause the latter to expand radially against the conduit and the nipple to provide a seal. As shown, the conduit 11 is made of polyvinyl chloride, a fluorocarbon, a polyamide or natural or synthetic rubber and has internal and external reinforced convolutions. The nipple is secured on a bulkhead 4 by a nut 3 screwed on the spigot end 2 of the nipple, an O-ring 7 being provided in a recess in the nipple to form a seal with the bulkhead 4. Stretching of the conduit is prevented by a flexible tape 19, Fig. 2, sandwiched between the sleeve 14 and the conduit end and between the outer surface of the conduit and the sleeve 14. In a modification, Fig. 4, the nipple is secured to an outlet box 20 by a nut 21 screwed thereon and having a flange 22 engaging a flange 23 on the nipple, a sealing ring 25 being interposed between the box and the nipple.
Patent GB-499460-A (GB)
Title: Improvements in and in the method of manufacturing collapsible metallic tubes
IPC: B21D51/36
Filed: 1938-08-04
Abstract: 499,460. Collapsable tubes. BRUUN. O. J. Aug. 4, 1938, No. 23023. [Class 66] [Also in Group XXII] A collapsable tube comprises a tube and shoulder portion 7 of tinned lead and a neck portion 6 of solid tin, the two parts being fused together, for example by soldering or by casting the neck in a mould disposed on the portion 7.
Patent GB-773755-A (GB)
Title: Improvements relating to method of producing self-regulating hydraulic power of highpressure from a variable fluid pressure of low value and apparatus for carrying out the method
IPC: F15B1/027
Filed: 1955-08-10
Abstract: 773,755. Fluid pumps on motor vehicles. ELECTRIC AUTO-LITE CO. Aug. 10, 1955 [Aug. 18, 1954], No. 23034/55. Class 79(3). [Also in Group XXIX] A gas-loaded accumulator is charged by a piston pump driven by a spring tensioned by a pneumatic motor. The accumulator, pump, and motor form a compact unit providing a source of power for the operation of vehicle accessories. The pneumatic motor comprises a diaphragm 15 and a chamber 18 alternately put into communication with the atmosphere and with the vehicle engine intake manifold, the change-over being effected by a snap-action valve. When the chamber 18 is open to the intake manifold, the reduction in pressure causes the diaphragm to be flexed upwardly; thereby tensioning a spring 57 and retracting a pump piston 68 which draws liquid from a reservoir R into a cylinder 69. At the upper position of the diaphragm 15 the snap-over valve opens chamber 18 to atmosphere, and the spring 57 moves the diaphragm downwardly and effects the pumping stroke of piston 68. Liquid is forced past a ball valve 81 into a chamber 96 of the accumulator. The accumulator comprises a gas-loaded piston 95, and liquid is supplied to an internal system through a passageway 106 and a conduit 109. At the end of the pumping stroke the snap-over valve opens the chamber 18 to the intake manifold, and the cycle is repeated. Charging stops when the tension of spring 57 is insufficient to force liquid into the accumulator against the pressure therein. The power unit of Fig. 9 is modified principally in that the accumulator comprises a piston 195 sliding in a cylinder 217 and separating a hydraulic chamber 196 from a gas chamber 197. An outer cylinder 200 surrounds the cylinder 217 and the space between them communicates with the gas chamber. Liquid is supplied to the external hydraulic system through a pipe 189 which passes through the reservoir R, and which joins the accumulator supply line immediately below the ball valve 81.
Patent GB-1461652-A (GB)
Title: Colour television camera apparatus
IPC: H04N9/68
Filed: 1974-05-23
Abstract: 1461652 Colour television SONY CORP 23 May 1974 [29 May 1973] 23098/74 Heading H4F The amplitude of the video signal derived from a colour television camera is controlled by the luminance signal derived from a low-pass filter 11 when all the at least two primary colour signals derived at 18, 19 have amplitudes below a predetermined level; if the amplitude of one of the primary colour signals exceeds the predetermined level, the amplitude of the video signal is controlled by that primary colour signal to ensure that the primary colour signals never exceed the predetermined level. The video signal amplitude may be controlled by controlling the target voltage of the image pick-up tube 2 (Fig. 4, not shown), or by means of a controllable gain amplifier 41. A red or blue primary colour signal amplitude above the predetermined level causes an output from circuit 44 or 45 to control amplifier 41 and open switch 43 to prevent the luminance signal from being fed to the amplifier 41. The camera may include a colour filter 7 formed by two superimposed striped filters, one (71, Fig. 2, not shown) having alternate transparent and yellow stripes and the other (72) having alternate transparent and cyan stripes, the stripes of the filters being at equal and opposite angles to the line scanning direction of tube 2 so as to produce respective phase changes of #/2 between successive line scans, red and blue signals being derived by adders 14, 13, oneline delay line 15, #/2 phase shifter 16 and -#/2 phase shifter 17.
Patent GB-975984-A (GB)
Title: Anaesthetic injections containing lignocaine with adrenaline or noradrenaline
Inventor: BROADHURST ENID MARY
IPC: A61K47/20
Filed: 1962-06-15
Abstract: Stable, painless, pharmaceutically acceptable, injectable compositions of lignocaine or a salt thereof with adrenaline, noradrenaline or a salt thereof dissolved in a suitable liquid diluent comprise, as stabilizing agents, 0.01% to 0.17% w/v. of acetone sodium bisulphite or an equivalent amount of any other pharmaceutically acceptable compound which produces sulphur dioxide when in contact with water at an acid pH, and a buffer, preferably with a pK of 3 to 4.5, which is present in such a concentration that the pH reached by the injectable composition is not lower than 3.3 at any time and such that the concentration is not greater than that required to give an isotonic solution. Other sulphor dioxide-producing stabilizers specified are potassium metabisulphite and sodium formaldehyde sulphoxylate. Specified buffers are sodium citrate and glycine.
Patent GB-337445-A (GB)
Title: Improvements in or relating to the treatment of wood cellulose
IPC: C08B1/02
Filed: 1929-07-29
Abstract: 337,445. Zellstofffabrik Waldhof, and Bernstein, A., July 29, 1929. Preparatory treatment of cellulose.- In order to produce cellulose containing 96-99 per cent alpha-cellulose, suitable for the production of cellulose formate, acetate, nitrate, &c., bleached or unbleached wood cellulose is submitted to the action of a solution of caustic alkali or alkaline carbonate containing at least 5 per cent alkali in the presence of a bleaching medium. The product is afterwards washed with dilute alkaline liquor followed by water. In one example, 100 kgs. of bleached wood cellulose is treated with 1500 kgs. of 15 per cent soda lye with which is mixed 200 litres of chlorine lye containing 25 gms. active chlorine per litre, the mass being stirred for 4 hours at a temperature of 15-20‹ C. The product is washed with alkali lye, mixed with water, acidulated and again washed. The chlorine-containing lye and the washing lye may be re-used. In a modification, the soda lye is of 10 per cent strength and the temperature is cooled to 10-12‹ C. or lower, the bleaching-agent being chloride of lime. As a modification of the process, useful cellulose containing 90-95 per cent alphacellulose is obtained using alkali concentrations of 2 1/2-5 per cent; an example is given involving 2 1/2 per cent soda lye at a temperature of 15- 20‹ C.
Patent GB-388771-A (GB)
Title: Improvements in and relating to means for producing alternating current of low frequency from alternating current of high frequency
IPC: H02M5/00
Filed: 1931-08-18
Abstract: 388,771. Frequency changing ; phase changing. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Aug. 18, 1931, No. 23255. Convention date, Aug. 21, 1930. Addition to 386,976. [Class 38 (ii).] Multiphase current from a supply 9 is converted into single phase current of lower frequency in a load circuit 11 by means of a transformer 7 having two groups of starconnected secondaries associated with a pair of grid-controlled discharge vessels 10, 10<1> which are rendered operative in turn to supply current in opposite directions through the load circuit, the frequency therein being determined by a commutator or grid transformer controlling the grid potentials. The arrangement may be used for producing current of variable frequency or of a frequency that is a fixed submultiple of the primary frequency. In the latter case, the phase voltages produced in the transformer secondaries may be made of such relative values as to cause the wave form of the output current to be substantially sinusoidal. Fig. 5 shows a modification adapted to produce a polyphase output. The input transformer is provided with three secondaries 13, 13<1>, 13<11> each feeding one primary phase of a three-phase output transformer or other load 15, 15<1>, 15<11> through groups of gridcontrolled discharge devices 14, 141, 14<11>. Reference has been directed by the Comptroller to Specifications 165,985 and 165,986, [both in Class 38 (ii), Electric currents, Converting &c.].
Patent GB-615201-A (GB)
Title: Improvements in and relating to frames for vertical piston engines
IPC: F02F7/00
Filed: 1946-08-06
Abstract: 615,201. Engine frames. MEINERTZ, M. F. Aug. 6, 1946, No. 23280. Convention date, Aug. 11, 1945. [Class 122 (iii)] [Also in Group XXVII] In a built-up steel frame, side pieces 5 which extend from the base 1 to the cylinder block 4 and are centrally loaded by forming them so that their neutral axes lie on lines joining the centres of gravity of the upper and lower flanges 6, 7, are connected by parallel-faced pieces 8 and serve as crosshead guides. The side pieces 5 preferably have wide flanges 9 for the crossheads adjacent the pieces 8 which are connected by bolts located in the plane of their webs, recesses being provided therein for the tightening nuts.
Patent GB-1019739-A (GB)
Title: Improvements in or relating to a tape reader
IPC: H04L17/00
Filed: 1963-06-11
Abstract: 1,019,739. Telegraphy. MITE CORPORATION. June 11, 1963 [June 20, 1962], No. 23287/63. Heading H4P. A tape reader comprises a row of sensor plates 192, Fig. 8A, the sensing pins 244 of which are biased upwards towards the tape by springs 196 when a bail 198 is raised. Each plate 192 has a hole 252 through which a specially shaped rod 224, Fig. 13, passes. In the position shown, cut-away portion 260 allows all the sensor plates to rise to sense perforations in the tape. Rotation' of rod 224 through 90 degrees brings further cutaway portions 270, 272, Fig. 15, into position above the bottom of holes 252 in the sensor plates to allow an additional sensor plate to rise in order to sense error perforations in a wide tape as well as the normal code perforations. Rotation of rod 224 to a position at 180 degrees from that shown in Fig. 15 prevents all of the sensor plates from rising to enable a continuous " all zero " test signal to be transmitted. In the remaining possible angular position of rod 224, at 180 degrees to that shown in Fig. 13, a pin 227 engages the bifurcated end 233 of a cam-reciprocated lever 234 so that rod 224 alternately assumes one of two axial positions in which sensor plates 1, 3, 5 and 2, 4 are allowed to rise, this position of rod 224 being used to automatically transmit the test signal RYRY &c. Notches 248, 250, Fig. 8A, are provided on each sensor plate 192 to operate separate sets of contacts, one set being used for serial transmission to a distant receiver and the other set being used to control local apparatus. A general view of the complete transmitter is given in Fig. 1. A keyboard 56 is used to control a printing station 30 and a perforating station 44. The printed and perforated tape then passes through a display section 46, and a slack loop 50 to the reader 52. A device 64 is provided by means of which the operator may notch the edge of the tape, or, in the case of a wide tape being used, form an additional perforation in the tape, to indicate an error. The tape is fed through the printerperforator unit in synchronism with the operation of this unit and also through the reader 52 by means of a sprocket wheel driven in synchronism with the operation of the reader. Tape entering the slack loop 50, Fig. 4, is driven by means of a pawl-and-ratchet device 372 which is driven directly from the printerperforator unit by linkage 376. Should the slack loop 50 be used up, a tight-tape sensing roller 76 is raised to operate a switch 80 and disable the reader by interrupting the drive thereto.